Deaver j40 with 12” shock

Codybrippin
Posts: 32
Joined: Tue Mar 12, 2019 6:39 pm
Bronco Info: 96 bronco xl 5.0 5 speed

Deaver j40 with 12” shock

Post by Codybrippin »

Setting up the rear of my truck 96 xl I’ve got deaver j40 leafs , threat extended shackles and lowered hangers , threat shock mount for 12” shocks and gen2 raptor rear shocks . I’m only getting about 1.5 inches of droop before maxing the shocks out from ride height ? Seems as though it would be more even bump travel vs droop ?
ThrustMaster
Posts: 50
Joined: Thu Feb 14, 2019 11:20 am
Bronco Info: 1985 Bronco Victorian 2 tone blue stock at the moment

Re: Deaver j40 with 12” shock

Post by ThrustMaster »

need pics
User avatar
Tchajagos
Posts: 2124
Joined: Sat Dec 17, 2011 11:07 am
Bronco Info: 1993 xlt stock on 33' BFGs
Location: Murrieta

Deaver j40 with 12” shock

Post by Tchajagos »

Raptor shocks


Gen 1

18" collapsed
29-1/2" extended

11-1/2" stroke


Gen 2 shocks

18-3/4” collapsed
31” extended

12-1/4” stroke


King shocks

Resi bypass 12”

20.625” collapsed
32.625” extended

12” stroke
User avatar
Tchajagos
Posts: 2124
Joined: Sat Dec 17, 2011 11:07 am
Bronco Info: 1993 xlt stock on 33' BFGs
Location: Murrieta

Deaver j40 with 12” shock

Post by Tchajagos »

Are you sure it’s the shocks maxing out and not the springs? Can you measure the shaft length at ride height and at full droop?
User avatar
Tchajagos
Posts: 2124
Joined: Sat Dec 17, 2011 11:07 am
Bronco Info: 1993 xlt stock on 33' BFGs
Location: Murrieta

Deaver j40 with 12” shock

Post by Tchajagos »

Also, put the truck or xfer case in neutral and make sure the driveshaft spins freely at full droop.
lolo_lox
Posts: 2
Joined: Wed Oct 25, 2023 3:29 pm
Bronco Info: 1995 Bronco 5.8 XLT 37 Bfgs, Method 304 17s, 5-6" front 3-4" rear unknown lift kit rest is stock

Re: Deaver j40 with 12” shock

Post by lolo_lox »

Id also like to see some pics on the J40s i haven't heard many great things on those leafs. IDK know why since they are made by deaver and deavers are great. What is the difference between q80s and the j40s ( aside from 3' width j40 and 2.5 q80 ? Like how much lift do the j 40s do and how soft are they?
Post Reply