Gasser Straight Axle, Chevy Spindle and Brake Kits, 56-1/2 Hub-to-Hub

#9103948

Gasser Straight Axle, Chevy Spindle and Brake Kits, 56-1/2 Hub-to-Hub

Name: Gasser Straight Axle, Chevy Spindle and Brake Kits, 56-1/2 Hub-to-Hub
Brand: Speedway Motors
SKU: 9103948
Rating: 4.9 (26 reviews)

26 Reviews

35 Questions

Create that vintage drag car look with this Gasser axle kit featuring a 56-1/2" hub to hub measurement
Professionally engineered and built 48" axle with 0.250" wall, 2.00" O.D. steel tubing
Brand new forged '49-'54 Chevy car spindles offer more strength over stock cast spindles

Caliper Type:

Stock-Style

Wilwood D154

Brake Kit:

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$1,031.99

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Product Summary

Universal Fit, Straight Axle Front Suspension Type

Create that vintage drag car look with this Gasser axle kit featuring a 56-1/2" hub to hub measurement
Professionally engineered and built 48" axle with 0.250" wall, 2.00" O.D. steel tubing
Brand new forged '49-'54 Chevy car spindles offer more strength over stock cast spindles
Ford 5 on 4-1/2" bolt pattern features a 9-1/4" vented rotor with 1/2"-20 wheel studs, Chevy 5 on 4-3/4" is a 9-1/4" vented rotor with 7/16"-20 studs, Wilwood brake kit offers both wheel bolt patterns
Use of Common '78-'88 GM metric calipers with a 2-1/2" bore for proven braking performance

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Key Specs

MFG. Part #	Select Caliper Type and Brake Kit
Front Suspension Type	Straight Axle
Suspension Height Adjustment	Stock Height
Control Arm Style	Not Included
Shock Type	Not Included

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Need To Know

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Return Policy

Installation Details

Front Suspension Kits Installation Instructions (9103948)

Front Spring Choices for Traditional Straight Axle Hot Rods

Solid Axle Choices for Your Traditional Hot Rod

Everything You Need to Know About Converting Drum Brakes to Disc

Brake Pad Identification and Friction Surface Options Explained

Installation Tips

If using steel wheels with Wilwood kit, you will also need to purchase (2) steel shims part 835-3007500. These shims will prevent steel wheels from galling the aluminum hub.
Rubber brake hoses generally cannot be adapted to Wilwood calipers. The caliper inlet fitting is a 1/8-27 NPT. The preferred method is to use steel adapter fittings at the caliper, either straight, 45 or 90 degree and enough steel braided line to allow for full suspension travel and turning radius, lock to lock.

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Details

These kits include our gasser straight front axle, semi-elliptical springs, spindles, king pins, steering arms, tierod kit, brake kit, and hardware. Choose either 5 on 4-1/2" or 5 on 4-3/4" bolt pattern with standard brake kit or Wilwood brake kit. Standard brake kits use new rotors and GM metric style calipers. Wilwood brake kit includes dual-drilled hub. Brake lines not included. Shocks not included, but shock mounts are included. Assembly required.

48 inch

Note: Wilwood brakes increase hub-to-hub width by 1/2".

-Wilwood brake kit will not work with ET gasser wheel 91058673. The Wilwood kit only comes with 1/2" studs for both the 5x4.5 and 5x4.75 bolt pattern. If you would like to use the 5x4.75 pattern, you will need to source a set of screw in 7/16" wheel studs.

Item Details

49-54 Chevy Spindles, Specify bolt pattern,
48" Wide axle - 56-1/2" hub to hub.

Not For Off-Road Race Use

Charts

910-3948 Instructions (PDF)

5 x 4-1/2 & 4-3/4 Brake Kit Instructions (PDF)

Wilwood Brake Instructions (PDF)

Gasser Info (PDF)

Specs

Gasser Kit w/ "Chevy" Spindles

Leaf springs, 31-1/4" long x 1-3/4" wide
- 6 leaf, 1/4" thick
- 400 lbs/inch spring rate
Chevy-style spindles (forged steel)
- Modeled after the 1949-54 Chevy passenger car spindle

"Chevy" Spindle Standard Brake Kit

5 x 4-1/2" Ford/Mopar bolt pattern
- 9-1/4" vented iron rotor, .890" thick
- Hub flange (hat) diameter - 5.74"
- 1/2" Fine wheel studs
- GM Metric '78-'88 calipers, 2-1/2" piston
- 7/16"-20 banjo bolt to AN-3 line adapter kit
5 x 4-3/4" GM bolt pattern
- 9-1/4" vented iron rotor, .890" thick
- Hub flange (hat) diameter - 5.74"
- 7/16" Fine wheel studs
- GM Metric '78-'88 calipers, 2-1/2" piston
- 7/16"-20 banjo bolt to AN-3 line adapter kit

"Chevy" Spindle Wilwood Brake Kit (must use 15"+ wheels)

Forged Dynalite 4-piston Calipers
10.75" x .810" Ultralite HP 30 Vane iron rotors
Wilwood Polymatrix-D Pads - very high cold friction, high fade/glaze resistance to periodic heat
Lightweight anodized aluminum Pro Street hubs
1/2"-20 wheel studs

Guides & Documents

Front Suspension Kits Installation Instructions (9103948)

Front Suspension Kits Technical Information (9103948)

Front Spring Choices for Traditional Straight Axle Hot Rods

Solid Axle Choices for Your Traditional Hot Rod

Straight Axles Technical Information (91035126)

Leaf Springs Technical Information (91033029)

Spindles Technical Information (91032100)

Steering Arms Technical Information (91632026)

Swedged Tubes Technical Information (91631)

Everything You Need to Know About Converting Drum Brakes to Disc

Disc Brake Pads Technical Information (8351508850K)

Disc Brake Pads Technical Information (9193381)

Brake Pad Identification and Friction Surface Options Explained

Specifications

KEY SPECS
MFG. Part #	Select Caliper Type and Brake Kit to see
Brand	Speedway Motors
Front Suspension Type	Straight Axle
Suspension Height Adjustment	Stock Height
Control Arm Style	Not Included
Shock Type	Not Included
Bolt Pattern	Select Caliper Type and Brake Kit to see
Spindle Style	Chevy/GM Custom
Dropped Axle	No
Spindles Included	Yes
Brakes Included	Yes
Welding Required	Yes
Caliper Pistons	Select Caliper Type and Brake Kit to see
Caliper Finish	Select Caliper Type and Brake Kit to see

GENERAL
Spring Type	Leaf Spring
Finish	Natural
Rotor Diameter	Select Caliper Type and Brake Kit to see
Dropped Spindles	No
Dropped Control Arms	No
Front Leaf Spring Style	Semi-Elliptical Gasser
Steering Included	Yes
Straight Axle Style	Tube

Ratings & Reviews

4.9

26 Reviews

Overall Assessment

Customers commend the high-quality,. practicality, and reliable features of the product, expressing satisfaction with the excellent welds and material quality. They also appreciate its usability, defining it as easy to install, with all necessary parts included. The axle, a key aspect of the product, received high praise for fitting well in various car models. However, several users wished for more detailed instructions and options, such as the choice of a dropped or straight axle. Despite minor improvements suggested, the product was highly recommended, often favoured over competitors, due to the value for money it offers and customer satisfaction with its performance.

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4.9

26 reviews

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Sort Reviews

It's a gas's er. 57 gasser wagon that is!

5.0

6 months ago

Mayer Arizona

Verified

This has been a great project. 1957 BELAIR two door wagon with a LS 383 stroker and a B&M ;400 turbo. And now a gasser straight axel. It can't get any better than that!

Would Recommend

66 Chevy II gasser tribute

5.0

6 months ago

Yams

Dartmouth Nova Scotia

Verified

Awesome kit. I already had a front clip with a dropped axle and altered wheelbase, but it wasn't ideal for street use. This kit allowed me to use the custom front clip I already had, and install this axle kit directly to it. Perfect fit. A little measuring and some welding and we're well on our way to making our 66 Chevy II gasser tribute a fun street car.

Would Recommend

nice piece

5.0

7 months ago

Verified

I would buy it again

Would Recommend

This is the second axle kit I purchased

5.0

a year ago

OneZ

Whiting Iowa

Verified

All parts are good quality. Nice kit gives you what you need.

Would Recommend

Yes

4.0

a year ago

Biil

Bellflower ill

Verified

Seems good instructions not the best

Would Recommend

And yes, I would buy this product again as I have

4.0

2 years ago

Deuce is wild

Verified

I went with the 4 inch drop. You did not have the axel in stock. I've received message from you twice that they have not come in as planned so I'm still waiting to finish up this project.

Would Recommend

Not great but with a little work they fit ok

4.0

2 years ago

The mad builder

Vancouver bc cdn.

Verified

The straight axle gasser king pin boss was warped from the welding. Using a wheel cylinder hone I managed to get the pin to fit. The boss on one side also was not true to the opposite side. Driver's side measured at 5.5 degrees and passenger side at 4.2 degrees. I spit the deference. There were not enough shims to get the steering knuckle's with in the permissible tolerance of no more than .006 inch. Tried to order more shims but are on back order. Made my own from shim stock. So far so good.

Would Recommend

I will purchase this again

5.0

3 years ago

Winston

Madisonville tn

Verified

Great product

I would buy again

5.0

4 years ago

J.D

kennewick wa

Verified

installed on 64 comet

Would Recommend

Yes

5.0

4 years ago

Bad Obsession

Riverside Ca

Verified

The quality of the axle was very good. The most important part for me is the quality of the welds, which they appear very good.

Would Recommend

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Questions & Answers

35 Questions • 10 Answers

Sort Questions

I have this kit with the standard chevy brake package. I am looking for recommendations for a master cylinder setup for a 1955 chevy belair. I would like to convert to power brakes and keep the unit as compact as possible. Continuing to use drum brakes in the rear for now. Thank you.

by Todd

• 5 months ago

1 answer

View Answer

What is the height of the leaf springs? I see the length and width is listed in the product specs, but not the height

by Theodore

• 2 years ago

1 answer

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so im building a 1950 buick roadmaster gasser. i plan on using this kit but im not sure what king of steering box i would need. what all would you suggest for a heavier car like that to run this kit?

by 50 buick

• 7 years ago

1 answer

View Answer

What steering box do you recommend with this kit? I am putting it in a 63 nova. And are there any other "missing" components aside from the frame rails and support bars from firewall, in comparison to the complete setup for the nova gasser kit. Hope that makes sense? Thanks

by Lamchoo

• 7 years ago

1 answer

View Answer

Can I buy just the brackets to bolt on the calipers for the straight axle kit?

by jim

• 8 years ago

1 answer

View Answer

Hi Sir, I'm building a '33Willys Gasser. I don't know if I want a Dropped or Straight axle . Could you give me the measurement difference ? From where the leaf springs mount to hub center. Also what width axle would you suggest. Thank you, Larry

by Larry

• 8 years ago

1 answer

View Answer

I am looking for a complete suspension setup for my 56 Ford Fairlane gasser project. I need everything front to back (straight axle and ladder bar rear). Which width front and what ladder bar kit do you recommend?

by Trent

• 8 years ago

1 answer

View Answer

I bought a front axle kit (Part # 9103948-4 3/4) a while back... Built a sub frame and installed the kit on my 1955 Chevy with no problem.... Had to order a Tie Rod/Drag Link (Part # 91632511) to the required length (I think 35 inches)... Used a mock up engine with a regular size oil pan during build up.... All was working out just great until I installed the engine (SB) with an 8 quart oil pan.... The Link hits the oil pan and I do not see any way to fix it... Do not want to change the oil pan.... Will void the warranty on the Engine.... Is there a rack and pinion Kit that would work with this axle assembly???? One that might mount forward of the axle or lower so it does not contact the oil pan???

by Butch

• 8 years ago

1 answer

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Hello, I just bought a 1965 Rambler American 220. I saw an artical on line where your gasser front end was used with a 4'' drop. They did not give product # for the kit. Could you tell me what Kit I would need? Also would be installing a SBC in place of the in-line six. would need some type of motor mounts. Thank You.

by Ray

• 9 years ago

1 answer

View Answer

I have a 49 pontiac 2 door coupe (not the fastback) with a stock frame what front end kits do you offer for upgrades that will work on my stock frame ? and what do I need to bolt in a Chevy V8 ? it's a flathead 6 now

by willy

• 9 years ago

1 answer

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